gcc compile multi thread
To compile a multi-threaded program in C++ using the gcc compiler, you can follow the steps below:
Step 1: Write the C++ code
First, you need to write the C++ code that includes the multi-threading functionality. This typically involves including the <thread>
header file and using the std::thread
class to create and manage threads.
Step 2: Save the C++ code
Save the C++ code in a file with a .cpp
extension. For example, you can save the file as main.cpp
.
Step 3: Open a terminal or command prompt
Open a terminal or command prompt on your system. This is the interface where you can enter commands to interact with the compiler.
Step 4: Navigate to the directory containing the C++ code
Use the cd
command to navigate to the directory where you have saved the C++ code. For example, if the code is saved in the Documents
directory, you can use the command cd Documents
to navigate to that directory.
Step 5: Compile the C++ code
To compile the C++ code using the gcc compiler, you can use the following command:
g++ -std=c++11 -pthread main.cpp -o main
Let's break down this command:
- g++
is the command to invoke the gcc compiler.
- -std=c++11
specifies the C++ language standard to use. This is necessary to enable features used in the code.
- -pthread
is a flag that tells the compiler to link the pthread library, which is required for multi-threading support.
- main.cpp
is the name of the C++ source file.
- -o main
specifies the name of the output executable. In this case, the output will be a file named main
.
Step 6: Execute the compiled program
After the compilation is successful, you can execute the compiled program by running the following command:
./main
This command runs the main
executable generated by the previous step.
That's it! You have successfully compiled and executed a multi-threaded program using the gcc compiler in C++.